Vertical forming machine

Abstract

The application relates to a vertical forming machine and relates to the technical field of wire harness shell injection molding, which comprises a rack, a lower mold fixedly arranged on the rack, an upper mold slidingly arranged on the rack in the vertical direction, a driving piece arranged on the rack and used for driving the upper mold to slide, and an auxiliary piece arranged on the rack, wherein a positioning insertion hole is arranged on one side of the auxiliary piece close to the upper mold and the lower mold, the positioning insertion hole is used for inserting a metal part at the end of a wire harness, and the positioning insertion hole is matched with the metal part. The application has the effects of preventing the metal part at the end of the wire harness from running during the injection molding process, reducing the skewing of the metal part extending out of the shell part, and improving the yield of the wire harness.

Description

Technical Field

[0001] This application relates to the field of wire harness housing injection molding technology, and in particular to vertical molding machines. Background Technology

[0002] During the wire harness processing, an outer shell needs to be injection molded from the end of the wire harness.

[0003] Existing vertical molding machines, also known as vertical injection molding machines, include a frame with a horizontally placed lower mold fixed on it and an upper mold that moves vertically. Both the upper and lower molds have molding grooves on their adjacent sides. Before the wire harness shell is formed, the wire harness end needs to be placed in the groove of the lower mold. After the upper and lower molds close under the drive of a drive unit, the grooves on the upper and lower molds together form a cavity space. Then, molten resin is filled into the cavity space by an injection nozzle, cooled, and solidified. Finally, the mold is opened, and the formed wire harness shell and wire harness are removed.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: When the wire harness is being molded into a housing, the conductor at the end of the wire harness is usually connected to a metal part. Part of the metal part needs to be injection molded into the housing together with the end of the wire harness, while the other part needs to extend out of the housing. However, the conductor in some wire harnesses is soft and easily deformed, making it difficult to provide effective support and constraint for the metal part. During the injection molding process, the metal part is prone to movement. After the injection molding is completed, the part of the metal part extending out of the housing may be skewed, affecting the yield of the wire harness. Utility Model Content

[0005] To prevent the metal part at the end of the wire harness from moving during the injection molding process, reduce the skewness of the metal part protruding from the outer shell, and improve the yield of the wire harness, this application provides a vertical molding machine.

[0006] The vertical forming machine provided in this application adopts the following technical solution: A vertical forming machine includes a frame, on which a lower mold is fixedly mounted, and an upper mold is slidably mounted on the frame in a vertical direction. A driving component for driving the upper mold to slide is provided on the frame. An auxiliary component is provided on the frame, and a positioning insertion hole is provided on the side of the auxiliary component near the upper and lower molds. The positioning insertion hole is used for inserting the metal part of the wire harness end, and the positioning insertion hole is adapted to the metal part.

[0007] By adopting the above technical solution, when the wire harness is injection molded, the metal part at the end of the wire harness is inserted into the positioning socket. Since the positioning socket is compatible with the metal part and can lock the metal part, it can form a stable positioning and constraint on the metal part, avoid the metal part from moving during the injection molding process, and thus avoid the skew phenomenon of the metal part protruding from the shell after injection molding, thereby improving the yield of the wire harness.

[0008] Preferably, the auxiliary component includes a base block and pre-installation strips. The base block is connected to the frame, and a plurality of pre-installation strips are provided. One of the pre-installation strips is installed on the base block and located on the side of the base block closer to the upper and lower molds. The remaining pre-installation strips are detached from the vertical forming machine, and the positioning insertion holes are opened on the pre-installation strips.

[0009] By adopting the above technical solution, when processing a large number of wire harnesses, the metal part of the wire harness is connected to a pre-installation strip. Then, the pre-installation strip with the wire harness attached is quickly installed on the base block, and the vertical molding machine is operated for injection molding. While waiting for the vertical molding machine to perform injection molding, the operator can connect the remaining wire harnesses to be processed to another idle pre-installation strip, thereby improving the processing efficiency of the wire harnesses. In addition, when processing wire harnesses of different specifications (i.e., different metal part sizes), it is not necessary to replace the entire auxiliary component. It is only necessary to remove the original pre-installation strip and replace it with a pre-installation strip with a corresponding size positioning insertion hole, which improves the equipment's adaptability to wire harnesses of different specifications.

[0010] Preferably, a first magnet is fixed and embedded in the base block, and a second magnet is fixed and embedded on the pre-installation strip, with the first magnet and the second magnet attracting each other.

[0011] By adopting the above technical solution, the pre-installation strip can be quickly fixed to the base block by utilizing the mutual attraction between the first magnet and the second magnet. No additional tools are required during the installation process. When disassembling, only a small external force is needed to overcome the magnetic force and remove the pre-installation strip. The operation is simple and quick, which improves the efficiency of pre-installation strip installation and removal and saves working time.

[0012] Preferably, the base block has a set of positioning grooves on the side facing the upper and lower molds. The positioning grooves are truncated cone-shaped. The pre-installation strip has a positioning block corresponding to the positioning groove integrally formed. The positioning block is truncated cone-shaped and fits into the positioning groove. The positioning block can extend into the positioning groove and fit against the side wall of the positioning groove.

[0013] By adopting the above technical solution, when installing the pre-installation strip, the positioning block extends into the positioning groove and fits against the side wall of the positioning groove to position the pre-installation strip and prevent the pre-installation strip from shifting on the base block. In addition, the positioning groove, which is set in the shape of a frustum, facilitates the insertion of the positioning block and corrects the position of the positioning block, further improving the efficiency of the installation and removal of the pre-installation strip and saving operation time.

[0014] Preferably, a guide rod is vertically and fixedly installed on the frame, the base block is slidably connected to the guide rod in the vertical direction, and a lifting mechanism is provided on the frame to drive the base block to slide.

[0015] By adopting the above technical solution, during the replacement of the pre-installation strip, the lifting mechanism drives the base block to move vertically upward along the guide rod, lifting the base block so that the base block and the lower mold are offset in the vertical direction, providing sufficient operating space for replacing the base block on the side closer to the upper and lower molds, and avoiding interference from the lower mold with the replacement of the pre-installation strip.

[0016] Preferably, the lifting mechanism includes a slide rail, a connecting rod, and a slider. The slide rail is fixedly connected to the upper mold, the bottom of the connecting rod is fixedly connected to the base block, and the slider is fixedly connected to the top of the connecting rod. The slider slides vertically within the slide rail, and the bottom of the slider abuts against the inner bottom wall of the slide rail. The bottom of the base block abuts against the frame.

[0017] By adopting the above technical solution, when the upper mold moves upward to open the mold, the slide rail moves upward with the upper mold. When the slide rail moves upward to the bottom and abuts against the slider, the slide rail drives the slider to move upward. The slider drives the base block to move upward through the connecting rod, thereby lifting the base block and completing the lifting action of the upper mold. When the upper mold moves downward to close the mold, it drives the slide rail to move downward. The slider moves downward synchronously with the slide rail under the action of the base block and its own gravity. When the base block moves downward to abut against the frame, the base block can no longer move downward, and the slider can no longer move downward. At this time, the stationary slider moves upward relative to the slide rail, providing movement space for the upper mold to continue to move downward.

[0018] Preferably, a stabilizing spring is provided inside the slide rail, with the top end of the stabilizing spring fixedly connected to the inner top wall of the slide rail, and a pressure block fixedly provided at the bottom end of the stabilizing spring. The pressure block can abut against the top of the slider and compress the stabilizing spring.

[0019] By adopting the above technical solution, before the upper mold is fully closed, the slider and the pressure block abut against each other and compress the stabilizing spring. The stabilizing spring provides downward pressure to the slider and the base block through the pressure block to improve the stability of the base block.

[0020] Preferably, the driving component is an electric push rod, which is fixedly connected to the frame and its output end is fixedly connected to the upper mold. The frame is also provided with a control button, which is electrically connected to the electric push rod.

[0021] By adopting the above technical solution, the electric push rod features high control precision and smooth operation, accurately controlling the lifting distance and speed of the upper mold to ensure the alignment accuracy when the upper and lower molds close. Operators can control the upper mold's movement via control buttons, simplifying the operation process.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting auxiliary parts and positioning holes, when the wire harness is injection molded, the metal part at the end of the wire harness is inserted into the positioning hole. Since the positioning hole is compatible with the metal part and can lock the metal part, it can form a stable positioning and constraint on the metal part, avoid the metal part from running during the injection molding process, and thus avoid the skew of the metal part protruding from the shell after injection molding, thereby improving the yield of the wire harness. 2. By setting up a base block, pre-installation strip, first magnet, second magnet, positioning groove, and positioning block, the pre-installation strip can be quickly assembled and disassembled using the attraction between the first magnet and the second magnet. Operators can connect the wire harness to be processed to the idle pre-installation strip in advance while waiting for injection molding. After injection molding is completed, only the pre-installation strip on the base block needs to be replaced, thus improving the processing speed. 3. By setting guide rods, lifting and lowering mechanisms, slide rails, connecting rods, sliders, stabilizing springs, and pressure blocks, when the upper mold opens, the slide rail drives the slider and connecting rod to move the base block upward along the guide rod, offsetting it vertically from the lower mold. This provides sufficient operating space for replacing the pre-installation strip and avoids interference with the lower mold. When the upper mold closes, if the base block cannot move downward, the slider moves upward relative to the slide rail. The stabilizing spring applies downward pressure to the slider and base block through the pressure block, improving the stability of the base block during the injection molding process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the vertical molding machine provided in the embodiments of this application.

[0024] Figure 2 This is a schematic diagram reflecting the structure of the base block and the pre-installation strip in the embodiments of this application.

[0025] Figure 3 This is a cross-sectional schematic diagram reflecting the lifting and placing mechanism in the embodiments of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Worktable; 111. Lower mold; 112. Guide rod; 113. Control button; 12. Support rod; 13. Top plate; 131. Electric push rod; 132. Mounting plate; 1321. Upper mold; 2. Auxiliary parts; 21. Base block; 211. First magnet; 212. Positioning groove; 22. Pre-installation strip; 221. Positioning insertion hole; 222. Second magnet; 223. Positioning block; 3. Lifting and lowering mechanism; 31. Slide rail; 32. Connecting rod; 33. Slider; 34. Stabilizing spring; 35. Pressure block; 4. Wire harness; 41. Metal part. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a vertical forming machine. (Refer to...) Figure 1The device includes a frame 1, which comprises a horizontal worktable 11, four vertically fixed support rods 12 on the top surface of the worktable 11, and a top plate 13 fixed to the top of the four support rods 12. The four support rods 12 are arranged in a rectangular shape on the horizontal plane. A lower mold 111 is detachably mounted on the top surface of the worktable 11 by bolts. An electric push rod 131, serving as a driving component, is fixedly mounted on the top plate 13. The output end of the electric push rod 131 extends vertically downward and is fixedly connected to a horizontal mounting plate 132. An upper mold 1321 is detachably mounted on the bottom surface of the mounting plate 132 by bolts, and the upper mold 1321 and the lower mold 111 are directly opposite each other. Several forming grooves for forming cavities are formed on the sides of the upper mold 1321 and the lower mold 111 that are close to each other. A control button 113 is also fixedly installed on the top surface of the workbench 11. The control button 113 is electrically connected to the electric push rod 131 and is used to control the extension and retraction of the electric push rod 131. The electric push rod 131 drives the upper mold 1321 to slide vertically through the extension and retraction.

[0029] To achieve positioning constraint on the metal part 41 and prevent the metal part 41 from moving during the injection molding process, refer to Figure 1 An auxiliary component 2 is provided on the frame 1, and the auxiliary component 2 is located in front of the upper mold 1321 and the lower mold 111 in the horizontal direction. The auxiliary component 2 has a positioning insertion hole 221 corresponding to the forming groove on the side near the upper mold 1321 and the lower mold 111. The positioning insertion hole 221 is used for inserting the metal part 41 at the end of the wire harness 4. The positioning insertion hole 221 is adapted to the metal part 41 and can clamp the metal part 41 by friction, thereby realizing the radial positioning and axial constraint of the metal part 41.

[0030] Reference Figure 1 and Figure 2 Specifically, the auxiliary component 2 includes a base block 21 and pre-installation strips 22. Guide rods 112 are vertically fixed on both sides of the top surface of the workbench 11, and the base block 21 slides and engages with the two guide rods 112 in the vertical direction. Several pre-installation strips 22 are provided, with positioning holes 221 opened on them. One pre-installation strip 22 is installed on the base block 21, located on the side of the base block 21 closest to the upper mold 1321 and lower mold 111, used to constrain the metal part 41 of the wire harness 4 that is about to be injected or is currently being injected. The remaining pre-installation strips 22 are detached from the vertical molding machine, serving two purposes: firstly, for backup; and secondly, during injection molding, the remaining wire harness 4 can be pre-connected to the remaining spare pre-installation strips 22, so that only the pre-installation strips 22 need to be replaced after mold opening.

[0031] To improve the efficiency of assembling and disassembling the pre-installation strip 22, refer to Figure 1 and Figure 2The base block 21 has a set of positioning grooves 212 on the side facing the upper mold 1321 and the lower mold 111. In this embodiment, there are two positioning grooves 212. The positioning grooves 212 are frustoconical and flared outwards towards the side facing the upper mold 1321 and the lower mold 111. A positioning block 223 corresponding to the positioning groove 212 is integrally formed on the pre-installation strip 22. The positioning block 223 is frustoconical. The positioning block 223 is adapted to the positioning groove 212 and can extend into the positioning groove 212 and fit against the side wall of the positioning groove 212. A first magnet 211 is fixed inside the base block 21, and a second magnet 222 is fixed and embedded on the pre-installation strip 22. The first magnet 211 and the second magnet 222 attract each other. In this embodiment, the first magnet 211 is fixed and embedded in the positioning groove 212, and the second magnet 222 is fixed and embedded in the positioning block 223.

[0032] Reference Figure 1 and Figure 2 When installing the pre-installation strip 22, the pre-installation strip 22 is close to the base block 21, and the positioning block 223 extends into the positioning groove 212. At this time, the first magnet 211 and the second magnet 222 attract each other due to their proximity, forcing the positioning groove 212 to cooperate with the positioning block 223 to position and connect the pre-installation strip 22. During disassembly, only a small external force is needed to overcome the magnetic force and remove the pre-installation strip 22.

[0033] To provide sufficient operating space for replacing the pre-installed strip 22, refer to... Figure 1 and Figure 3 A lifting mechanism 3 is provided on the frame 1. The lifting mechanism 3 is used to drive the base block 21 to slide vertically along the guide rod 112. The lifting mechanism 3 includes a slide rail 31, a connecting rod 32, and a slider 33. Two slide rails 31 are vertically fixed on the bottom surface of the mounting plate 132 and extend downward. The slide rail 31 is a hollow rectangular rod structure. The connecting rod 32 is vertically fixed on the top surface of the base block 21, and the slider 33 is fixed on the top of the connecting rod 32. The slider 33 slides vertically and adapts to the inner wall of the slide rail 31. The bottom of the slider 33 abuts against the inner bottom wall of the slide rail 31, and the bottom of the base block 21 can abut against the top of the worktable 11. A stabilizing spring 34 is provided inside the slide rail 31. The top of the stabilizing spring 34 is fixedly connected to the inner top wall of the slide rail 31, and a pressure block 35 is fixedly provided at the bottom of the stabilizing spring 34. The pressure block 35 can abut against the top of the slider 33 and compress the stabilizing spring 34.

[0034] Reference Figure 1 and Figure 3When the upper mold 1321 moves upward to open the mold, the slide rail 31 moves upward with the upper mold 1321, while the base block 21 and the slider 33 do not move upward with the slide rail 31 under their own weight. When the slide rail 31 moves upward to the inner bottom and abuts against the bottom of the slider 33, the slider 33 moves upward with the slide rail 31 and drives the base block 21 upward through the connecting rod 32, lifting the base block 21 so that the base block 21 and the lower mold 111 are vertically offset. This provides sufficient operating space for replacing the base block 21 on the pre-installation strip 22 near the upper mold 1321 and the lower mold 111, and avoids the lower mold 111 interfering with the replacement of the pre-installation strip 22. When the upper mold 1321 moves down to close, it drives the slide rail 31 to move down. The slider 33 moves down synchronously with the slide rail 31 under the action of the base block 21 and its own gravity. When the base block 21 moves down to abut against the frame 1 (i.e., the top of the worktable 11), the base block 21 can no longer move down, and the slider 33 can no longer move down. At this time, the stationary slider 33 moves up relative to the slide rail 31, providing space for the upper mold 1321 to continue moving down. During this period, the operator tidies up the wire harness 4 in the forming groove of the lower mold 111. Before the upper mold 1321 is fully closed, the pressure block 35 abuts against the slider 33 and compresses the stabilizing spring 34. The stabilizing spring 34 provides downward pressure to the slider 33 and the base block 21 through the pressure block 35 to improve the stability of the base block 21.

[0035] The implementation principle of the vertical molding machine in this embodiment is as follows: Before the wire harness 4 is injection molded, the operator inserts the metal part 41 at the end of the wire harness 4 into the positioning hole 221 of the empty pre-installation strip 22, completing the pre-assembly of the wire harness 4 and the pre-installation strip 22. Then, the pre-installation strip 22 is brought close to the base block 21, and the positioning block 223 extends into the positioning groove 212. At this time, the first magnet 211 and the second magnet 222 attract each other due to their proximity, positioning and connecting the pre-installation strip 22. Then, by controlling the electric push rod 131 to extend its output end via control button 113, the upper mold 1321 moves down to close, driving the slide rail 31 down. The slider 33, under the action of the base block 21 and its own gravity, moves down synchronously with the slide rail 31. When the base block 21 reaches the top of the worktable 11, the base block 21 and slider 33 can no longer move down, and the wire harness 4 enters the molding groove of the lower mold 111. The operator tidies up the wire harness 4 in the molding groove of the lower mold 111. Afterwards, the upper mold 1321 continues to move down, and the pressure block 35 moves down with the slide rail 31 to reach the top of the slider 33. The stabilizing spring 34 is compressed, providing downward pressure to the slider 33 and the base block 21 to improve the stability of the base block 21. At this point, the upper mold 1321 and the lower mold 111 are closed. Then, molten resin is filled into the cavity space by the injection nozzle and cooled to form the outer shell through injection molding. During this period, the operator pre-connects the remaining wire harness 4 to the remaining spare pre-installation strips 22. Subsequently, when the upper mold 1321 moves upward to open the mold, the slide rail 31 moves upward with the upper mold 1321. The base block 21 and slider 33, under their own weight, do not initially move upward with the slide rail 31. When the slide rail 31 moves upward to the point where its inner bottom abuts against the bottom of the slider 33, the slider 33 moves upward with the slide rail 31 and, through the connecting rod 32, drives the base block 21 upward, lifting the base block 21 and causing it to be vertically misaligned with the lower mold 111, thus preventing the lower mold 111 from interfering with the replacement of the pre-installation strip 22. Finally, only the pre-connected pre-installation strip 22 needs to be replaced. This prevents the metal part 41 at the end of the wire harness 4 from shifting during injection molding, reduces the skewness of the metal part 41 extending out of the outer shell, and improves the yield rate of the wire harness 4.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertical forming machine, comprising a frame (1), wherein a lower mold (111) is fixedly disposed on the frame (1), and an upper mold (1321) is slidably disposed on the frame (1) in a vertical direction, and a driving component for driving the upper mold (1321) to slide is disposed on the frame (1), characterized in that: An auxiliary component (2) is provided on the frame (1). The auxiliary component (2) has a positioning insertion hole (221) on the side near the upper mold (1321) and the lower mold (111). The positioning insertion hole (221) is used for inserting the metal part (41) at the end of the wire harness (4). The positioning insertion hole (221) is adapted to the metal part (41).

2. The vertical forming machine according to claim 1, characterized in that: The auxiliary component (2) includes a base block (21) and a pre-installation strip (22). The base block (21) is connected to the frame (1). A plurality of pre-installation strips (22) are provided, one of which is installed on the base block (21) and located on the side of the base block (21) near the upper mold (1321) and the lower mold (111). The remaining pre-installation strips (22) are detached from the vertical forming machine. The positioning insertion hole (221) is opened on the pre-installation strip (22).

3. The vertical forming machine according to claim 2, characterized in that: A first magnet (211) is fixed and embedded in the base block (21), and a second magnet (222) is fixed and embedded on the pre-installation strip (22). The first magnet (211) and the second magnet (222) attract each other.

4. The vertical forming machine according to claim 2, characterized in that: The base block (21) has a set of positioning grooves (212) on one side facing the upper mold (1321) and the lower mold (111). The positioning grooves (212) are frustoconical. The pre-installation strip (22) has a positioning block (223) corresponding to the positioning grooves (212) integrally formed. The positioning block (223) is frustoconical and is adapted to the positioning grooves (212). The positioning block (223) can extend into the positioning grooves (212) and fit against the side wall of the positioning grooves (212).

5. The vertical forming machine according to claim 2, characterized in that: A guide rod (112) is vertically and fixedly installed on the frame (1). The base block (21) is slidably connected to the guide rod (112) in the vertical direction. A lifting mechanism (3) is provided on the frame (1). The lifting mechanism (3) is used to drive the base block (21) to slide.

6. The vertical forming machine according to claim 5, characterized in that: The lifting mechanism (3) includes a slide rail (31), a connecting rod (32), and a slider (33). The slide rail (31) is fixedly connected to the upper mold (1321). The bottom of the connecting rod (32) is fixedly connected to the base block (21). The slider (33) is fixedly connected to the top of the connecting rod (32). The slider (33) slides vertically within the slide rail (31). The bottom of the slider (33) abuts against the inner bottom wall of the slide rail (31). The bottom of the base block (21) abuts against the frame (1).

7. The vertical forming machine according to claim 6, characterized in that: A stabilizing spring (34) is provided inside the slide rail (31). The top end of the stabilizing spring (34) is fixedly connected to the inner top wall of the slide rail (31). A pressure block (35) is fixedly provided at the bottom end of the stabilizing spring (34). The pressure block (35) can abut against the top of the slider (33) and compress the stabilizing spring (34).

8. The vertical forming machine according to claim 1, characterized in that: The driving component is an electric push rod (131), which is fixedly connected to the frame (1). The output end of the electric push rod (131) is fixedly connected to the upper mold (1321). The frame (1) is also provided with a control button (113), which is electrically connected to the electric push rod (131).

Images